I am too lazy to post it all here, but I did document my exodus from heavy to light to ultralight at:
http://www.crazyguyonabike.com/doc/Ultralight

It doesn't show all of my very latest gear choice, but I tried to include a lot of useful info and food for thought. I also tried to make it useful for both folks who want to go all out ultralight and also those who just want to trim their load a bit.